Arvind rub web controls manufactures pneumatic ink circulating pumps of flameproof design which are used in the flexible packaging industry. In flexible packaging industry, the atmosphere is saturated with highly explosive solvent vapour, a potential fire hazard. Hence these pneumatic pumps are a safe bet. They provide 100% safe ink/adhesive or lacquer circulation system for better output, continuous quality product and least wastage of film and ink. Technical specifications: pumping method - through triple layer fibre laminated solvent proof rubber diaphragm; flow rate 400 ltr/hr [can be controlled by air flow]; pump body ss 316 pressure cast and cast iron; volume of tank 20 ltr [or as required]; material of tank - ss 316; filter location - inside the tank; and air pressure required - 4 kg/cm2. Design features: compact, low weight design; very easy to install and operate; trouble free continuous operation; and flow of ink can be controlled by controlling the air flow.